The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.
# Object: 13SV99 # Created Sun Dec 22 02:09:37 2024 # Orbit generated from Bernstein formalism # Fitting 18 observations of 18 # Arc: 15.97d # First observation: 2013/09/28 # Last observation: 2013/10/14 Preliminary a, adot, b, bdot, g, gdot: 0.000015 0.775725 0.000020 -0.089280 0.246443 0.000000 # Chi-squared of fit: 24.52 DOF: 30 RMS: 0.21 # Min/Max residuals: -0.52 0.48 # Exact a, adot, b, bdot, g, gdot: 4.802555E-05 7.118556E-01 -5.431288E-06 -9.262609E-02 2.340315E-01 1.051990E-01 # Covariance matrix: 1.8408E-13 1.9008E-11 3.1075E-14 -4.3666E-12 8.4100E-12 9.0681E-10 1.9008E-11 3.2258E-06 5.0317E-10 3.0091E-07 5.6001E-07 4.4381E-06 3.1075E-14 5.0317E-10 2.0136E-13 4.0637E-11 8.9073E-11 1.0286E-09 -4.3666E-12 3.0091E-07 4.0637E-11 2.9128E-08 5.1844E-08 3.3467E-07 8.4100E-12 5.6001E-07 8.9073E-11 5.1844E-08 9.7510E-08 8.2494E-07 9.0681E-10 4.4381E-06 1.0286E-09 3.3467E-07 8.2494E-07 1.6806E-05 # lat0 lon0 xBary yBary zBary JD0 -17.586445 32.450293 0.464076 -0.268315 -0.846861 2456563.670361 # Heliocentric elements and errors Epoch: 2456560.5000 = 2013/09/25 Mean Anomaly: 7.66851 +/- 0.754 Argument of Peri: 224.83382 +/- 1.363 Long of Asc Node: 149.75353 +/- 0.075 Inclination: 17.09538 +/- 0.016 Eccentricity: 0.25822336 +/- 0.0037 Semi-Major Axis: 6.90012616 +/- 0.0201 Time of Perihelion: 2463039.8722 +/- 13.8 Perihelion: 5.11835238 +/- 0.0295 Aphelion: 8.68189994 +/- 0.0359 Period (y) 18.1257 +/- 0.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 4.43534788 +/- 0.0046 Ecliptic Y 2.27322331 +/- 0.0029 Ecliptic Z -1.29108361 +/- 0.0017 Ecliptic XDOT -0.00376087 +/- 0.0000 Ecliptic YDOT 0.00747992 +/- 0.0000 Ecliptic ZDOT -0.00140466 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 5.14847083 +/- 0.0042 Geocenter to KBO 4.27292942 +/- 0.0057 # Hcoef: 16.49
The following table shows the complete astrometric record for 13SV99. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (13SV99) followed by the observatory code and reference code for the source of the astrometry.
2013 09 28.169583 02 24 56.06 -04 13 46.5 24.0g 13SV99 W84 C~263N 2013 09 28.172234 02 24 56.02 -04 13 47.0 24.8g 13SV99 W84 C~263N 2013 09 28.174884 02 24 55.98 -04 13 47.8 23.7g 13SV99 W84 C~263N 2013 09 28.340995 02 24 52.90 -04 14 32.7 23.2z 13SV99 W84 C~263N 2013 09 28.345139 02 24 52.85 -04 14 33.4 23.9z 13SV99 W84 C~263N 2013 09 29.270208 02 24 36.18 -04 18 41.7 23.0i 13SV99 W84 C~263N 2013 09 29.274699 02 24 36.10 -04 18 43.0 23.3i 13SV99 W84 C~263N 2013 09 29.279201 02 24 36.02 -04 18 44.2 23.5i 13SV99 W84 C~263N 2013 09 29.283715 02 24 35.94 -04 18 45.2 23.3i 13SV99 W84 C~263N 2013 09 29.288206 02 24 35.85 -04 18 46.6 23.3i 13SV99 W84 C~263N 2013 09 29.311863 02 24 35.37 -04 18 53.2 23.5r 13SV99 W84 C~263N 2013 09 29.316852 02 24 35.29 -04 18 54.4 23.4r 13SV99 W84 C~263N 2013 09 29.321794 02 24 35.19 -04 18 55.8 23.6r 13SV99 W84 C~263N 2013 10 02.249919 02 23 39.42 -04 31 56.6 23.8g 13SV99 W84 C~263N 2013 10 02.252569 02 23 39.37 -04 31 57.2 24.1g 13SV99 W84 C~263N 2013 10 02.255220 02 23 39.32 -04 31 57.7 24.0g 13SV99 W84 C~263N 2013 10 14.130984 02 19 13.86 -05 22 07.5 23.2i 13SV99 W84 C~263N 2013 10 14.134780 02 19 13.80 -05 22 08.1 23.0z 13SV99 W84 C~263N
The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.
1 0.0000 0.00 0.01 0.00 -0.17
2 0.0000 -0.73 0.21 -0.27 -0.01
3 0.0000 -1.56 0.30 -0.82 -0.14
4 0.0005 -60.06 -0.03 -27.59 -0.27
5 0.0005 -61.00 0.48 -28.00 -0.01
6 0.0030 -379.37 -0.17 -177.91 0.24
7 0.0030 -380.94 -0.12 -178.73 0.12
8 0.0030 -382.47 -0.04 -179.46 0.10
9 0.0031 -383.93 0.11 -179.99 0.26
10 0.0031 -385.67 -0.02 -180.86 0.10
11 0.0031 -394.65 -0.52 -184.66 0.00
12 0.0031 -396.18 -0.27 -185.39 0.06
13 0.0032 -398.06 -0.38 -186.20 0.01
14 0.0112 -1446.16 0.04 -641.01 -0.21
15 0.0112 -1447.07 0.14 -641.32 -0.14
16 0.0112 -1447.94 0.27 -641.54 0.03
17 0.0437 -6196.75 -0.31 -2147.04 -0.05
18 0.0437 -6197.80 0.29 -2147.30 0.07
The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.
13SV99 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 6.880 7.164 6.664 ecceobj 0.257 0.175 0.308 incobj 17.134 16.872 17.480 qmin 4.827 5.747 4.609 qmax 17.346 9.178 8.719 amean 8.893 7.228 6.664 amin 6.880 6.726 6.664 amax 11.087 8.041 6.664 emean 0.414 0.158 0.308 emin 0.257 0.104 0.308 emax 0.565 0.217 0.308 imean 12.641 15.360 16.373 imin 9.616 14.834 16.373 imax 16.001 15.805 16.373 excite_mean 0.477 0.310 0.418 fracstop 0.000 0.001 0.000 cjmean 4.448 5.109 5.379 libcent 0 -180.0 -180.0 -180.0 libamp 0 -180.0 -180.0 -180.0 libcent 1 -180.0 -180.0 -180.0 libamp 1 -180.0 -180.0 -180.0 libcent 2 -180.0 -180.0 -180.0 libamp 2 -180.0 -180.0 -180.0 libcent 3 -180.0 -180.0 -180.0 libamp 3 -180.0 -180.0 -180.0 libcent 4 -180.0 -180.0 -180.0 libamp 4 -180.0 -180.0 -180.0 kozaimean 241.0 174.9 222.4 kozaiamp 27.8 147.7 0.0